What is the easiest haircut for men to maintain? 

Such a hairstyle is a mullet haircut https://menshaircuts.com/mullet-haircut/ can perfectly suit your needs. Some creative hairdressers and stylists have taken the time to design some cool modern cut cuts, creating whimsical mullet styles that look edgy and trendy. In fact, I was surprised to find so many images of mullets adorned with men's hair in such unique ways.

Square Face

Wide jaw and high cheekbones are the key features of men’s square faces. Here’s how you take advantage of these symmetric qualities:

Keep your sideburns short and hair above the ears.

Try having your hair relatively short but styled upward to elongate the face.

If you are keen on facial hair, opt for a longer beard which will lengthen a square jaw.